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Service Manual

ESIE04-01

RZQ71~125B7V3B

Sky-Air Inverter R-410A B series

RZQ - Final.book Page 1 Monday, September 20, 2004 11:24 AM

Summary of content (172 pages)

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RZQ - Final.book Page i Monday, September 20, 2004 11:24 AM ESIE04-01 Table of Contents 1 1 Introduction 1.1 1.2 1.3 About This Manual .................................................................................. Combination Overview ............................................................................ Precautions on handling new refrigerants............................................... i–i i–ii i–iv Part 1 System Outline 1 3 General Outline: Outdoor Units 1.1 1.2 1.3 1.
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RZQ - Final.book Page ii Monday, September 20, 2004 11:24 AM ESIE04-01 1 3 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4 5 1–43 1–44 1–47 1–48 1–49 1–50 1–51 1–52 1–53 What Is in This Chapter? ......................................................................... Pair system ............................................................................................. Twin System ............................................................................................ Triple System .................
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RZQ - Final.book Page iii Monday, September 20, 2004 11:24 AM ESIE04-01 6 7 Wiring Diagrams 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10 6.11 6.12 6.13 6.14 6.15 What Is in This Chapter? ........................................................................ RZQ71B7V3B ......................................................................................... RZQ100~125B7V3B ............................................................................... FCQ35~60B7V1..........................................
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RZQ - Final.book Page iv Monday, September 20, 2004 11:24 AM ESIE04-01 1 Part 2 Functional Description 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 3 4 5 General Functionality 2 What Is in This Chapter? ......................................................................... Thermostat Control ................................................................................. Drain Pump Control .....................................................................
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RZQ - Final.book Page v Monday, September 20, 2004 11:24 AM ESIE04-01 Part 3 Troubleshooting 1 Troubleshooting 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 2 1 What Is in This Chapter? ........................................................................ General Troubleshooting Flowchart ........................................................ Overview of General Problems ............................................................... Procedure of Self-Diagnosis by Remote Controller ..............
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RZQ - Final.book Page vi Monday, September 20, 2004 11:24 AM ESIE04-01 1 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3 4 5 Error Codes: Outdoor Units 3.19 3.20 3.21 3.22 3.23 4 4.3 4.4 4.5 4.6 3–78 3–80 3–82 3–84 3–85 3–86 What Is in This Chapter? ......................................................................... Malfunction of Transmission between Indoor and Outdoor Unit ..........................................................................
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RZQ - Final.book Page vii Monday, September 20, 2004 11:24 AM ESIE04-01 Part 4 Commissioning and Test Run 1 Pre-Test Run Checks 1.1 1.2 1.3 2 What Is in This Chapter? ........................................................................ Test Run Checks .................................................................................... Setting the Wireless Remote Controller .................................................. 4–3 4–4 4–5 3 Field settings 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.
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RZQ - Final.book Page viii Monday, September 20, 2004 11:24 AM ESIE04-01 1 Part 5 Disassembly and Maintenance 1 Disassembly and Maintenance: Outdoor Units 1.1 1.2 3 2 5 viii 5–3 5–4 Disassembly and Maintenance: Indoor Units 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 4 What Is in This Chapter? ......................................................................... RZQ71~125B7V3B ..................................................................................
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RZQ - Final.book Page i Monday, September 20, 2004 11:24 AM ESIE04-01 Introduction Part 0 1 Introduction 1.1 About This Manual Target group This service manual is intended for and should only be used by qualified engineers. Purpose of this manual This service manual contains all the information you need to do the necessary repair and maintenance tasks for the Sky Air RZQ-series.
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RZQ - Final.book Page ii Monday, September 20, 2004 11:24 AM Introduction Combination Overview Introduction FCQ, FFQ, FBQ 3 P “2” stands for twin combination. P “3” stands for triple combination. P “4“ double twin combination. P “P” and “M” are allowed and guaranteed combinations, but they will not be officially mentioned as such in catalogues or databooks. The table below contains the possible combinations between indoor units (FCQ, FFQ and FBQ) and outdoor units of the Sky Air RZQ-series.
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RZQ - Final.book Page iv Monday, September 20, 2004 11:24 AM Introduction 1 ESIE04-01 1.3 Precautions on handling new refrigerants 1.3.1 Outline About Refrigerant R410A P Characteristics of new refrigerant, R410A 1 Performance Almost the same performance as R22 and R407C. 2 Pressure Working pressure is approx. 1.4 times more than R22 and R407C. 3 Refrigerant composition Few problems in composition control, since it is a Quasi-azeotropic mixture refrigerant.
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RZQ - Final.book Page vi Monday, September 20, 2004 11:24 AM Introduction 1 1.3.2 ESIE04-01 Refrigerant Cylinders Cylinder specifications P The cylinder is painted refrigerant color (pink). P The cylinder valve is equipped with a siphon tube. Cylilinder Siphon tube 3 4 5 P Handling of cylinders vi Note: 1 Refrigerant can be charged in liquid state with cylinder in upright position.
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RZQ - Final.book Page vii Monday, September 20, 2004 11:24 AM ESIE04-01 1.3.4 Introduction Service Tools R410A is used under higher working pressure, compared to previous refrigerants (R22,R407C). Furthermore, the refrigerating machine oil has been changed from Suniso oil to Ether oil, and if oil mixing is occurred, sludge results in the refrigerants and causes other problems.
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RZQ - Final.book Page viii Monday, September 20, 2004 11:24 AM Introduction 1 ESIE04-01 Copper tube material and thickness R407C Pipe size 3 R410A Material Thickness tmmj Material Thickness tmmj φ6.4 O 0.8 O 0.8 φ9.5 O 0.8 O 0.8 φ12.7 O 0.8 O 0.8 φ15.9 O 1.0 O 1.0 φ19.1 O 1.0 1/2H 1.0 * O: Soft (Annealed) H: Hard (Drawn) Flaring tool 4 5 Flare gauge P • Specifications Dimension A Nominal size viii A +0 -0.4 Tube O.D.
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RZQ - Final.book Page ix Monday, September 20, 2004 11:24 AM ESIE04-01 Introduction P • Differences Change of dimension A Dimension A For class-1: R407C For class-2: R410A Conventional flaring tools can be used when the work process is changed. (change of work process) Previously, a pipe extension margin of 0 to 0.5mm was provided for flaring. For R410A air conditioners, perform pipe flaring with a pipe extension margin of 1.0 to 1.5 mm.
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RZQ - Final.book Page x Monday, September 20, 2004 11:24 AM Introduction 1 ESIE04-01 Vacuum pump with check valve Vacuum pump adaptor (Reverse flow preventive vacuum adaptor) P • 3 • P • • 4 Specifications Discharge speed 50 l/min (50Hz) 60 l/min (60Hz) Suction port UNF7/16-20(1/4 Flare) UNF1/2-20(5/16 Flare) with adaptor Maximum degree of vacuum –100.
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RZQ - Final.book Page xi Monday, September 20, 2004 11:24 AM ESIE04-01 Introduction Gauge manifold for R410A P • • • • • P • • Specifications High pressure gauge - 0.1 to 5.3 MPa (-76 cmHg to 53 kg/cm2) Low pressure gauge - 0.1 to 3.8 MPa (-76 cmHg to 38 kg/cm2) 1/4" → 5/16" (2min → 2.5min) No oil is used in pressure test of gauges. → For prevention of contamination Temperature scale indicates the relationship between pressure and temperature in gas saturated state.
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RZQ - Final.book Page xii Monday, September 20, 2004 11:24 AM Introduction 1 ESIE04-01 Charging cylinder Can not be used P • 3 P • Specifications Use weigher for refrigerant charge listed below to charge directly from refrigerant cylinder. Differences The cylinder can not be used for mixed refrigerant since mixing ratio is changed during charging. When R410A is charged in liquid state using charging cylinder, foaming phenomenon is generated inside charging cylinder.
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RZQ - Final.book Page 3 Monday, September 20, 2004 11:24 AM ESIE04-01 General Outline: Outdoor Units Part 1 1 General Outline: Outdoor Units 1.1 What Is in This Chapter? Introduction General outline Part 1 – System Outline This chapter contains the following information on the outdoor units: P Outlook and dimensions P Installation and service space P Components 1 3 This chapter contains the following general outlines: General outline See page 1.2–RZQ71: Outlook and dimensions 1–4 1.
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RZQ - Final.book Page 4 Monday, September 20, 2004 11:24 AM General Outline: Outdoor Units 11 1.2 ESIE04-01 RZQ71: Outlook and dimensions Outlook and dimensions The illustration below shows the outlook and the dimensions of the unit (mm). Installation and service space See page 1–8.
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RZQ - Final.book Page 5 Monday, September 20, 2004 11:24 AM ESIE04-01 Components General Outline: Outdoor Units 1 The table below contains the different components of the unit. No.
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RZQ - Final.book Page 6 Monday, September 20, 2004 11:24 AM General Outline: Outdoor Units 11 1.3 ESIE04-01 RZQ100 and RZQ125: Outlook and dimensions Outlook and dimensions The illustration below shows the outlook and the dimensions of the unit (mm). Installation and service space See page 1–8.
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RZQ - Final.book Page 7 Monday, September 20, 2004 11:24 AM ESIE04-01 Components General Outline: Outdoor Units 1 The table below contains the different components of the unit. No.
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RZQ - Final.book Page 8 Monday, September 20, 2004 11:24 AM General Outline: Outdoor Units 11 1.4 ESIE04-01 RZQ71, RZQ100 and RZQ125: Installation and Service Space Non stacked The illustrations and table below show the required installation and service space (mm). The values in brackets are for the 100 and 125 class.
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RZQ - Final.book Page 9 Monday, September 20, 2004 11:24 AM ESIE04-01 Stacked General Outline: Outdoor Units The illustration below shows the required installation and service space (mm). The values in brackets are for the 100 and 125 class. P Do not stack more than one unit. P ± 100 mm is required as the dimension for laying the upper outdoor unit’s drain pipe. P Get the portion A sealed so that air from the outlet does not bypass.
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RZQ - Final.book Page 11 Monday, September 20, 2004 11:24 AM ESIE04-01 General Outline: Indoor Units Part 1 2 General Outline: Indoor Units 2.1 What Is in This Chapter? Introduction General outline Part 1 – System Outline This chapter contains the following information on the indoor units: P Outlook and dimensions P Components 1 3 This chapter contains the following general outlines: General outline See page 2.2–FCQ35B7V1 ~ FCQ71B7V3B 1–12 2.3–FCQ100~125B7V3B 1–14 2.
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see note 3 1–12 Branch duct connection mo re or mo re Branch duct connection Prepared hole or mo re VIEW D REQUIRED INSTALLATION SPACE WHEN THE DISCHARGE GRILL IS CLOSED, THE REQUIRED SPACE IS 200 mm OR MORE. or VIEW B Branch duct connection 4. When the conditions exceed 30°C and RH 80% in the ceiling or fresh air is inducted into the ceiling, an additional insulation is required (polyethylene foam, thickness 10mm or more). or mo re General Outline: Indoor Units 2.
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RZQ - Final.book Page 13 Monday, September 20, 2004 11:24 AM ESIE04-01 Components General Outline: Indoor Units 1 The table below contains the different components of the unit. No.
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see note 3 1–14 (Suspension position) (Ceiling opening) or re or mo re or mo re VIEW D or mo REQUIRED INSTALLATION SPACE WHEN THE DISCHARGE GRILL IS CLOSED, THE REQUIRED SPACE IS 200 mm OR MORE. mo or re mo Branch duct connection Prepared hole 4. When the conditions exceed 30°C and RH 80% in the ceiling or fresh air is inducted into the ceiling, an additional insulation is required (polyethylene foam, thickness 10mm or more). 3.
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RZQ - Final.book Page 15 Monday, September 20, 2004 11:24 AM ESIE04-01 Components General Outline: Indoor Units 1 The table below contains the different components of the unit. No.
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1–16 Adjustable or less NOTE) 4. * * or more * *WHEN THE DISCHARGE GRILL IS CLOSED, THE REQUIRED SPACE IS 200 mm OR MORE. or more * Outdoor air intake (Direct connection) Ceiling General Outline: Indoor Units 4. Though the installation is acceptable up to maximum of 660mm square ceiling opening, keep the clearance of 45mm or less between the main unit and the ceiling opening so that the panel overlap allowance can be ensured. 3.
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RZQ - Final.book Page 17 Monday, September 20, 2004 11:24 AM ESIE04-01 Components General Outline: Indoor Units 1 The table below contains the different components of the unit. No.
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1–18 (On circumference) (Knock out hole) VIEW C Fresh air intake position General Outline: Indoor Units 3. For maintenance of the air filter, it is necessary to provide a service access panel according to the installation method. (Refer to the ‘Filter installation method’ drawing) 2. The required ceiling depth varies according to the configuration of the specific system. P.C.D. 5 NOTES: 1. Refer to ‘Outlook drawing for installing optional accessories’ when installing optional accessories.
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RZQ - Final.book Page 19 Monday, September 20, 2004 11:24 AM ESIE04-01 Components General Outline: Indoor Units 1 The table below contains the different components of the unit. No.
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1–20 (On circumference) (Knock out hole) VIEW C General Outline: Indoor Units 3. For maintenance of the air filter, it is necessary to provide a service access panel according to the installation method. (Refer to the ‘Filter installation method’ drawing) 2. The required ceiling depth varies according to the configuration of the specific system. 5 Fresh air intake position 4 NOTES: 1. Refer to ‘Outlook drawing for installing optional accessories’ when installing optional accessories.
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RZQ - Final.book Page 21 Monday, September 20, 2004 11:24 AM ESIE04-01 Components General Outline: Indoor Units 1 The table below contains the different components of the unit. No.
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1–22 (On circumference) (Knock out hole) VIEW C Fresh air intake position or more (Service Space) General Outline: Indoor Units 3. For maintenance of the air filter, it is necessary to provide a service access panel according to the installation method. (Refer to the ‘Filter installation method’ drawing) 2. The required ceiling depth varies according to the configuration of the specific system. 5 Suspension bolt 4 VIEW B Outlook and dimensions VIEW A 2.7 NOTES: 1.
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RZQ - Final.book Page 23 Monday, September 20, 2004 11:24 AM ESIE04-01 Components General Outline: Indoor Units 1 The table below contains the different components of the unit. No.
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RZQ - Final.book Page 24 Monday, September 20, 2004 11:24 AM General Outline: Indoor Units 11 2.8 ESIE04-01 FDQ125B7V3B The illustration below shows the outlook and the dimensions of the unit (mm).
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RZQ - Final.book Page 25 Monday, September 20, 2004 11:24 AM ESIE04-01 Components General Outline: Indoor Units 1 The table below contains the different components of the unit. No.
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1–26 (Required space) (Required space) For height installation Drain pipe connection (For left piping) or more Brand name plate (Note 2) (Service Space) Position: Hole of wall for taking out in piping back (View from the front) General Outline: Indoor Units 3. The remote control code is the standard attached. (0.5mm² x 2wicks x O.D. ø 5.4) (It is not attached to VRV.) 2. In case of using wireless remote controller, this position will be a signal receiver.
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RZQ - Final.book Page 27 Monday, September 20, 2004 11:24 AM ESIE04-01 Components Part 1 – System Outline General Outline: Indoor Units 1 The table below contains the different components of the unit. No.
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1–28 Drain pipe connection (For left piping) (Required space) or more From the floor side 2500 or more (Required space) For height installation Brand name plate (Note 2) Position: Hole of wall for taking out in piping back (View from the front) General Outline: Indoor Units 3. The remote control code is the standard attached. (0.5mm² x 2wicks x O.D. ø 5.4) (It is not attached to VRV.) 2.
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RZQ - Final.book Page 29 Monday, September 20, 2004 11:24 AM ESIE04-01 Components Part 1 – System Outline General Outline: Indoor Units 1 The table below contains the different components of the unit. No.
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1–30 (Required space) or more Floor side Drain pipe connection (For left piping) For height installation From the floor side 2500 or more (Required space) Brand name plate (Note 2) Position: Hole of wall for taking out in piping back (View from the front) General Outline: Indoor Units 3. The remote control code is the standard attached. (0.5mm² x 2wicks x O.D. ø 5.4) (It is not attached to VRV.) 2.
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RZQ - Final.book Page 31 Monday, September 20, 2004 11:24 AM ESIE04-01 Components Part 1 – System Outline General Outline: Indoor Units 1 The table below contains the different components of the unit. No.
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1–32 (Required space) or more Floor side Drain pipe connection (For left piping) (Hanging position) or more (Required space) For height installation Position: Hole of wall for taking out in piping back (View from the front) Brand name plate (Note 2) General Outline: Indoor Units 3. The remote control code is the standard attached. (0.5mm² x 2wicks x O.D. ø 5.4) (It is not attached to VRV.) 2.
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RZQ - Final.book Page 33 Monday, September 20, 2004 11:24 AM ESIE04-01 Components Part 1 – System Outline General Outline: Indoor Units 1 The table below contains the different components of the unit. No.
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1–34 * General Outline: Indoor Units 3. When closing the discharge grill (2 or 3 way discharge), direction of pipe connecion will be limited, please refer to Installation manual.) discharge grill, the required space is 30mm or more. (Note 3) * or more or more *When closing the Height of suspension bracket * or more Suspension bolt * or more or more (Required space) 4 2. This is where the signal of wireless remote controller is received.
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RZQ - Final.book Page 35 Monday, September 20, 2004 11:24 AM ESIE04-01 Components General Outline: Indoor Units 1 The table below contains the different components of the unit. No.
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1–36 * General Outline: Indoor Units 3. When closing the discharge grill (2 or 3 way discharge), direction of pipe connecion will be limited, please refer to Installation manual.) discharge grill, the required space is 30mm or more. (Note 3) * or more or more *When closing the Height of suspension bracket * or more Suspension bolt * or more or more (Required space) 4 2. This is where the signal of wireless remote controller is received.
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RZQ - Final.book Page 37 Monday, September 20, 2004 11:24 AM ESIE04-01 Components General Outline: Indoor Units 1 The table below contains the different components of the unit. No.
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Mounting Location 5 1–38 Approx. Approx. Approx. Name plate (Note 2) 50 OR MORE (Required space) 2500 OR MORE For installation in 50 or more (Required space) high spaces hole (Piping and Wiring intake) Piping direction 4 2. In case of using wireless remote controller, this position will be a signal receiver. Refer to the drawing of wireless remote controller in detail. hole Piping direction 3 50 or more (Required space) Dimensions for full open front panel.
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RZQ - Final.book Page 39 Monday, September 20, 2004 11:24 AM ESIE04-01 Components General Outline: Indoor Units 1 The table below contains the different components of the unit. No.
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or more 1–40 Mounting Location hole (Piping and Wiring intake) or more 2. In case of using wireless remote controller, this position will be a signal receiver. Refer to the drawing of wireless remote controller in detail. NOTES: 1. Location general rated name plate Right side plate outside surface (Service space for air filter) General Outline: Indoor Units Detail A (Mounting hole for installation plate) Hole (For wood bolt) Approx. Approx. Approx.
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RZQ - Final.book Page 41 Monday, September 20, 2004 11:24 AM ESIE04-01 Components General Outline: Indoor Units 1 The table below contains the different components of the unit. No.
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RZQ - Final.book Page 43 Monday, September 20, 2004 11:24 AM ESIE04-01 Specifications Part 1 3 Specifications 3.1 What Is in This Chapter? Introduction Outdoor units Indoor units Part 1 – System Outline This chapter contains the following information: P Technical specifications P Electrical specifications P Electrical data 1 3 This chapter contains the following specifications: Specifications See page 3.
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RZQ - Final.book Page 44 Monday, September 20, 2004 11:24 AM Specifications 11 3.2 ESIE04-01 RZQ71, RZQ100 and RZQ125 Technical specifications The table below contains the technical specifications. Specification Compressor RZQ71B7V3B RZQ100B7V3B RZQ125B7V3B Model 2YC63BXD JT100FCVD Type Hermetically sealed swing compressor Hermetically sealed scroll compressor 1800 W 2200 W Crankcase heater Motor output 33 W Speed Length 3 866 mm No. of rows Fin pitch No.
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RZQ - Final.book Page 45 Monday, September 20, 2004 11:24 AM ESIE04-01 Specifications Electrical specifications 1 The table below contains the electrical specifications.
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RZQ - Final.book Page 46 Monday, September 20, 2004 11:24 AM Specifications 11 3 ESIE04-01 Unit combination Power supply Compressor OFM IFM FCQ125B7V3B RZQ125B7V3B 50-230 25.0 25.0 30 23.4 23.4 0.07+0.07 0.3+0.3 0.090 1.0 FCQ60B7V1x2 RZQ125B7V3B 50-230 25.2 25.2 30 23.4 23.4 0.07+0.07 0.3+0.3 0.045x2 0.6x2 FCQ50B7V1x3 RZQ125B7V3B 50-230 25.8 25.8 30 23.4 23.4 0.07+0.07 0.3+0.3 0.045x3 0.6x3 FCQ35B7V1x4 RZQ125B7V3B 50-230 26.4 26.4 30 23.4 23.4 0.07+0.
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RZQ - Final.book Page 47 Monday, September 20, 2004 11:24 AM ESIE04-01 3.3 Specifications FCQ 1 Technical specifications The table below contains the technical specifications. Specification Heat exchanger FCQ35B7V1 FCQ50B7V1 FCQ60B7V1 Rows x stages x fin pitch 2x8x1.5 Face area 0.331 m² Tube type FCQ125B7V3B 0.497 m² HIXA diam. 7 HiXSS diam.
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RZQ - Final.book Page 48 Monday, September 20, 2004 11:24 AM Specifications 11 3.4 ESIE04-01 FFQ Technical specifications The table below contains the technical specifications. Specification Heat exchanger FFQ35BV1B Rows x stages x fin pitch FFQ50BV1B FFQ60BV1B 2x10x1.5 Face area Tube type HiXSS diam. 7 Fin type Fan 3 Multi louver fin Air flow rate cooling (high) 10.0 m³/min 12.0 m³/min 15.0 m³/min Air flow rate cooling (low) 6.5 m³/min 8.0 m³/min 10.
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RZQ - Final.book Page 49 Monday, September 20, 2004 11:24 AM ESIE04-01 3.5 Specifications FBQ 1 Technical specifications The table below contains the technical specifications. Specification Heat exchanger FBQ35B7V1 FBQ50B7V1 FBQ60B7V1 Rows x stages x fin pitch 0.132 m² Tube type 0.221 m² Hi-XSS diam. 7 Rhombus Air flow rate cooling (high) 11.5 m³/min 14.0 m³/min 19.0 m³/min 19.0 m³/min 27.0 m³/min 35.0 m³/min Air flow rate cooling (low) 9.0 m³/min 10.0 m³/min 14.0 m³/min 14.
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RZQ - Final.book Page 50 Monday, September 20, 2004 11:24 AM Specifications 11 3.6 ESIE04-01 FDQ Technical specifications The table below contains the technical specifications. Specification Heat exchanger FDQ125B7V3B Rows x stages x fin pitch 0.338 m² Tube type Hi-XSS diam. 7 Fin type Fan 3 43.0 m³/min Air flow rate cooling (low) 43.0 m³/min Air flow rate heating (high) 43.0 m³/min Air flow rate heating (low) 43.
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RZQ - Final.book Page 51 Monday, September 20, 2004 11:24 AM ESIE04-01 3.7 Specifications FHQ 1 Technical specifications The table below contains the technical specifications. Specification Heat exchanger Rows x stages x fin pitch FHQ35BUV1B FHQ50BUV1B FHQ60BUV1B 2 x 12 x 1.75 3 x 12 x 1.75 2 x 12 x 1.75 Face area 0.182 m² FHQ100BUV1B FHQ125BUV1B 3 x 12 x 1.75 0.233 m² Tube type 0.293 m² 0.341 m² N-Hix Fin type Fan FHQ71BUV1B Multi louver Air flow rate cooling (high) 13.
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RZQ - Final.book Page 52 Monday, September 20, 2004 11:24 AM Specifications 11 3.8 ESIE04-01 FUQ Technical specifications The table below contains the technical specifications. Specification Heat exchanger FUQ71BUV1B Rows x stages x fin pitch Face area 0.265 m² 0.353 m² N-Hix Fin type 3 Multi louver Air flow rate cooling (high) 19.0 m³/min 29.0 m³/min 32.0 m³/min Air flow rate cooling (low) 14.0 m³/min 21.0 m³/min 23.0 m³/min Air flow rate heating (high) 19.0 m³/min 29.0 m³/min 32.
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RZQ - Final.book Page 53 Monday, September 20, 2004 11:24 AM ESIE04-01 3.9 Specifications FAQ Technical specifications 1 The table below contains the technical specifications. Specification Heat exchanger FAQ71BUV1B FAQ100BUV1B 2 x 16 x 1.4 2 x 12 x 1.4 Face area 0.289 m² 0.332 m² Tube type Hi-XA Rows x stages x fin pitch N-Hix Fin type Fan Multi louver Air flow rate cooling (high) 19.0 m³/min Air flow rate cooling (low) 15.0 m³/min 19.0 m³/min Air flow rate heating (high) 19.
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RZQ - Final.book Page 55 Monday, September 20, 2004 11:24 AM ESIE04-01 Functional Diagrams Part 1 4 Functional Diagrams 4.1 What Is in This Chapter? Introduction Functional diagrams Part 1 – System Outline This chapter contains the following information: P Functional diagrams P Pipe connection diameters. 1 3 This chapter contains the following functional diagrams: Functional diagram See page 4.2–Pair system 1–56 4.3–Twin System 1–58 4.4–Triple System 1–60 4.
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RZQ - Final.book Page 56 Monday, September 20, 2004 11:24 AM Functional Diagrams 11 4.
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RZQ - Final.book Page 58 Monday, September 20, 2004 11:24 AM Functional Diagrams 11 4.3 ESIE04-01 Twin System RZQ71 6 7 14a 14a 8 7 10 14a 14a 5a 13 3 8 1a 9 1a Indoor unit 16 7 4 15 16 11 14a Liquid piping 10 19 Gas piping 5 4 13 1a 1a Indoor unit 1–58 1a 12 Outdoor unit Heating Cooling 2b & 3 NOTE: The press between the branch and the indoor units should have the same size as the indoor connections.
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RZQ - Final.book Page 59 Monday, September 20, 2004 11:24 AM ESIE04-01 Functional Diagrams 1 RZQ100~125 6 7 14a 14a 8 8 7 14a 14a 5a 13 17 1a 9 10 3 1a Indoor unit 15 7 8 11 12 16 Liquid piping Gas piping Outdoor unit 1a 1a Part 1 – System Outline 1a 4 13 Indoor unit 4 10 19 Heating Cooling 5 2b & 3 NOTE: The press between the branch and the indoor units should have the same size as the indoor connections.
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RZQ - Final.book Page 60 Monday, September 20, 2004 11:24 AM Functional Diagrams 11 4.4 ESIE04-01 Triple System RZQ100~125 6 7 14a 14a 8 8 8 13 3 7 1a Indoor unit 14a 1a 14a 5a 17 9 10 7 Liquid piping 4 13 1a 8 Gas piping Indoor unit 15 1a 11 12 16 1a 1a 10 19 4 7 5 Outdoor unit Heating Cooling 2b & 3 13 Indoor unit 1–60 1a 1a NOTE: The press between the branch and the indoor units should have the same size as the indoor connections.
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RZQ - Final.book Page 61 Monday, September 20, 2004 11:24 AM ESIE04-01 4.5 Functional Diagrams Double Twin System 1 RZQ100~125 7 6 Indoor unit 1a 14a 14a 8 13 8 1a 7 14a 14a 5a 7 3 17 9 Indoor unit 10 1a 13 15 1a Liquid piping 8 19 11 12 1a 7 Indoor unit 16 4 Gas piping 10 1a 4 13 Outdoor unit 1a 7 Indoor unit 1a 13 Heating Cooling 5 2b & 3 NOTE: The press between the branch and the indoor units should have the same size as the indoor connections.
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RZQ - Final.book Page 62 Monday, September 20, 2004 11:24 AM Functional Diagrams 11 4.
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RZQ - Final.book Page 64 Monday, September 20, 2004 11:24 AM Functional Diagrams 11 4.7 ESIE04-01 Pipe connection diameters Outdoor units The table below contains the refrigerant pipe connection diameters. Model RZQ71B7V3B ∅ Gas pipe (flare) ∅ Liquid pipe (flare) 15.9 mm 9.52 mm RZQ100B7V3B RZQ125B7V3B 3 Indoor units The table below contains the refrigerant pipe connection diameters. ∅ Gas pipe (flare) ∅ Liquid pipe (flare) FCQ35B7V1 9.5 mm 6.4 mm FCQ50~60B7V1 12.7 mm 6.
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RZQ - Final.book Page 65 Monday, September 20, 2004 11:24 AM ESIE04-01 4.8 Functional Diagrams Re-using existing field piping Introduction 1 When installing a system using an RZQ outdoor unit, existing or pre-installed piping can be used according to below specified conditions. In all circumstances where these conditions can not be fully met, new piping has to be installed. How to re-use existing piping? Check the existing pipe size.
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RZQ - Final.book Page 66 Monday, September 20, 2004 11:24 AM Functional Diagrams Do not allow anything other than the designated refrigerant to get mixed into the freezing cycle (air, moisture,... ). If any refrigerant gas leaks while working on the unit, ventilate the room thoroughly immediately. P Use R410A only when adding refrigerant. P Make sure all installation tools are designed for use on R410A refrigerant to withstand the pressure. P Vacuum pump.
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RZQ - Final.book Page 67 Monday, September 20, 2004 11:24 AM ESIE04-01 Refrigerant pipe size Functional Diagrams P 1 Pipe size down and pipe size up is available for main piping (L1) only. Refrigerant pipe size Gas pipe Model RZQ71B7V3B RZQ100 & 125B7V3B Size-down φ 12.7 –– Standard size φ 15.9 Size-up –– φ 19.1 Liquid pipe Model RZQ71~125B7V3B P Size-down Standard size Size-up φ 6.4 φ 9.5 φ 12.7 Not using the standard pipe size may result in capacity decrease.
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RZQ - Final.book Page 68 Monday, September 20, 2004 11:24 AM Functional Diagrams 11 Allowable pipe length and heigth difference ESIE04-01 When re-using existing piping, refer to below table for allowable piping length and heigth difference (figures in brackets are equivalent lengths).
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RZQ - Final.book Page 69 Monday, September 20, 2004 11:24 AM ESIE04-01 Caution for flare connections Functional Diagrams P Refer to below table for correct flare dimensions and tightening torques. Too high tightening force may cause refrigerant leak because of flare cracking: Flare nut tightening torque A dimensions for processing flares (mm) Ø 6.4 14.2~17.2 N·m (144~176 kgf·cm) 8.7~9.1 Ø 9.5 32.7~39.9 N·m (333~407 kgf·cm) 12.8~13.2 Ø 12.7 49.5~60.3 N·m (504~616 kgf·cm) 16.2~16.6 Ø 15.
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ESIE04-01 4.9 Components The table below contains the different components of the functional diagrams. No. Component Function / remark 1a Flare connection See pipe connection diameter. 2a Liquid stop valve The liquid stop valve is used as shut-off valve in case of a pump-down. 2b Liquid stop valve with service port 3 Gas stop valve with service port The gas stop valve is used as shut-off valve in case of a pump-down. 4 Compressor The compressor can restart after 3 min from last stop.
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ESIE04-01 1–72 Part 1 – System Outline
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RZQ - Final.book Page 73 Monday, September 20, 2004 11:24 AM ESIE04-01 Switch Box Layout Part 1 5 Switch Box Layout 5.1 What Is in This Chapter? Introduction This chapter shows the switch box components. Outdoor units This chapter contains the following switch box layouts: Indoor units Part 1 – System Outline 1 3 Switch box layout See page 5.2–RZQ71B7V3B 1–74 5.3–RZQ100B7V3B 1–75 4 This chapter contains the following switch box layouts: PCB layout See page 5.
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RZQ - Final.book Page 74 Monday, September 20, 2004 11:24 AM Switch Box Layout 11 5.
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RZQ - Final.book Page 76 Monday, September 20, 2004 11:24 AM Switch Box Layout 11 5.4 ESIE04-01 FCQ35B7V1 ~ FCQ71B7V3B The illustration below shows the switch box layout:.
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RZQ - Final.book Page 77 Monday, September 20, 2004 11:24 AM ESIE04-01 5.
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RZQ - Final.book Page 78 Monday, September 20, 2004 11:24 AM Switch Box Layout 11 5.
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RZQ - Final.book Page 79 Monday, September 20, 2004 11:24 AM ESIE04-01 5.7 Switch Box Layout FBQ35B7V1 ~ FBQ125B7V3B 1 The illustration below shows the switch box layout:.
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RZQ - Final.book Page 81 Monday, September 20, 2004 11:24 AM ESIE04-01 5.
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RZQ - Final.book Page 82 Monday, September 20, 2004 11:24 AM Switch Box Layout 11 5.
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RZQ - Final.book Page 83 Monday, September 20, 2004 11:24 AM ESIE04-01 5.
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RZQ - Final.book Page 84 Monday, September 20, 2004 11:24 AM Switch Box Layout 11 5.
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RZQ - Final.book Page 85 Monday, September 20, 2004 11:24 AM ESIE04-01 Wiring Diagrams Part 1 6 Wiring Diagrams 6.1 What Is in This Chapter? Introduction This chapter contains the wiring diagrams of the outdoor and indoor units. Outdoor units: This chapter contains the following wiring diagrams: Indoor units: Part 1 – System Outline 1 3 Wiring diagram See page 6.2–RZQ71B7V3B 1–86 6.
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RZQ - Final.book Page 86 Monday, September 20, 2004 11:24 AM Wiring Diagrams 11 6.2 ESIE04-01 RZQ71B7V3B Wiring diagram The illustration below shows the wiring diagram of the unit.
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RZQ - Final.book Page 87 Monday, September 20, 2004 11:24 AM ESIE04-01 6.3 Wiring Diagrams RZQ100~125B7V3B Wiring diagram 1 The illustration below shows the wiring diagram of the unit.
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RZQ - Final.book Page 88 Monday, September 20, 2004 11:24 AM Wiring Diagrams 11 6.4 ESIE04-01 FCQ35~60B7V1 Wiring diagram The illustration below shows the wiring diagram of the unit.
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RZQ - Final.book Page 89 Monday, September 20, 2004 11:24 AM ESIE04-01 6.5 Wiring Diagrams FCQ71~125B7V3B Wiring diagram 1 The illustration below shows the wiring diagram of the unit.
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RZQ - Final.book Page 90 Monday, September 20, 2004 11:24 AM Wiring Diagrams 11 6.6 ESIE04-01 FFQ35~60BV1B Wiring diagram The illustration below shows the wiring diagram of the unit.
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RZQ - Final.book Page 91 Monday, September 20, 2004 11:24 AM ESIE04-01 6.7 Wiring Diagrams FBQ35~60B7V1 Wiring diagram 1 The illustration below shows the wiring diagram of the unit.
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RZQ - Final.book Page 92 Monday, September 20, 2004 11:24 AM Wiring Diagrams 11 6.8 ESIE04-01 FBQ71B7V3B Wiring diagram The illustration below shows the wiring diagram of the unit.
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RZQ - Final.book Page 93 Monday, September 20, 2004 11:24 AM ESIE04-01 6.9 Wiring Diagrams FBQ100~125B7V3B Wiring diagram 1 The illustration below shows the wiring diagram of the unit.
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RZQ - Final.book Page 94 Monday, September 20, 2004 11:24 AM Wiring Diagrams 11 6.10 ESIE04-01 FDQ125B7V3B Wiring diagram The illustration below shows the wiring diagram of the unit.
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RZQ - Final.book Page 95 Monday, September 20, 2004 11:24 AM ESIE04-01 6.11 Wiring Diagrams FHQ35~60BUV1 Wiring diagram 1 The illustration below shows the wiring diagram of the unit.
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RZQ - Final.book Page 96 Monday, September 20, 2004 11:24 AM Wiring Diagrams 11 6.12 ESIE04-01 FHQ71~125BUV1B Wiring diagram The illustration below shows the wiring diagram of the unit.
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RZQ - Final.book Page 97 Monday, September 20, 2004 11:24 AM ESIE04-01 6.13 Wiring Diagrams FUQ71~125BUV1B Wiring diagram 1 The illustration below shows the wiring diagram of the unit.
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RZQ - Final.book Page 98 Monday, September 20, 2004 11:24 AM Wiring Diagrams 11 6.14 ESIE04-01 FAQ71BUV1B Wiring diagram The illustration below shows the wiring diagram of the unit.
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RZQ - Final.book Page 99 Monday, September 20, 2004 11:24 AM ESIE04-01 6.15 Wiring Diagrams FAQ100BUV1B Wiring diagram 1 The illustration below shows the wiring diagram of the unit.
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RZQ - Final.book Page 101 Monday, September 20, 2004 11:24 AM ESIE04-01 PCB Layout Part 1 7 PCB Layout 7.1 What Is in This Chapter? Introduction Outdoor units Indoor units Part 1 – System Outline This chapter contains the following information: P It describes which unit uses which PCB types P It shows the PCB connectors. 1 3 This chapter contains the following PCB layouts: PCB layout See page 7.2–RZQ71B7V3B 1–102 7.
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RZQ - Final.book Page 102 Monday, September 20, 2004 11:24 AM PCB Layout 11 7.2 ESIE04-01 RZQ71B7V3B Control PCB The illustration below shows the PCB connectors. X3A X64A X26A X18A X17A 3 X19A X20A X6A X12A 4 X77A 5 X22A X1A Connectors The table below describes the PCB connectors.
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RZQ - Final.book Page 103 Monday, September 20, 2004 11:24 AM ESIE04-01 Inverter PCB PCB Layout 1 The illustration below shows the PCB connectors. 3 X60A 4 X201A X205A 5 X206A Connectors Part 1 – System Outline X207A The table below describes the PCB connectors.
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RZQ - Final.book Page 104 Monday, September 20, 2004 11:24 AM PCB Layout 11 7.3 ESIE04-01 RZQ100B7V3B Control PCB The illustration below shows the PCB connectors. X3A X64A X26A X18A X17A X19A X20A 3 X6A X12A 4 X77A X28A X25A X22A 5 X1A Connectors The table below describes the PCB connectors.
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RZQ - Final.book Page 105 Monday, September 20, 2004 11:24 AM ESIE04-01 Inverter PCB (A2P) PCB Layout 1 The illustration below shows the PCB connectors. 3 4 X60A X205A 5 X206A X207A Connectors Part 1 – System Outline The table below describes the PCB connectors.
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RZQ - Final.book Page 106 Monday, September 20, 2004 11:24 AM PCB Layout 11 7.4 ESIE04-01 FCQ35~60B7V1 PCB The illustration below shows the PCB connectors. X20A X27A X11A X10A X33A X19A X60A X61A X5A X35A X24A 3 X15A X25A 4 Connectors 5 1–106 X18A X36A X40A X17A The table below describes the PCB connectors.
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RZQ - Final.book Page 107 Monday, September 20, 2004 11:24 AM ESIE04-01 7.5 PCB Layout FCQ71~125B7V3B PCB 1 The illustration below shows the PCB connectors. X27A X11A X10A X33A X19A X60A X61A X5A X35A X20A X24A X15A X18A X25A Connectors Part 1 – System Outline X36A 3 X40A 4 The table below describes the PCB connectors.
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RZQ - Final.book Page 108 Monday, September 20, 2004 11:24 AM PCB Layout 11 7.6 ESIE04-01 FFQ35~60BV1B PCB The illustration below shows the PCB connectors. X27A X11A X10A X33A X60A X61A X19A X20A X5A X35A X24A 3 X15A X25A X18A X36A X40A X17A 4 Connectors 5 1–108 The table below describes the PCB connectors.
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RZQ - Final.book Page 109 Monday, September 20, 2004 11:24 AM ESIE04-01 7.7 PCB Layout FBQ35~60B7V1 PCB 1 The illustration below shows the PCB connectors. X61A X60A X33A X11A X25A X27A X15A X18A X19A X21A 3 X17A 4 X10A X35A Connectors Part 1 – System Outline X5A X40A The table below describes the PCB connectors.
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RZQ - Final.book Page 110 Monday, September 20, 2004 11:24 AM PCB Layout 11 7.8 ESIE04-01 FBQ100~125B7V3B PCB The illustration below shows the PCB connectors. X61A X60A X33A X11A X25A X27A X15A 3 X18A X21A X19A 4 X10A X35A Connectors 5 1–110 X40A X5A The table below describes the PCB connectors.
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RZQ - Final.book Page 111 Monday, September 20, 2004 11:24 AM ESIE04-01 7.9 PCB Layout FDQ125B7V3B PCB 1 The illustration below shows the PCB connectors. X61A X33A X11A X27A X60A X31A X18A X19A X21A X40A X10A X35A Connectors Part 1 – System Outline 3 4 X5A The table below describes the PCB connectors.
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RZQ - Final.book Page 112 Monday, September 20, 2004 11:24 AM PCB Layout 11 7.10 ESIE04-01 FHQ35~60BUV1 PCB The illustration below shows the PCB connectors. X61A X60A X33A X11A X27A X14A X15A X40A X20A 3 X23A X29A X18A X25A X19A X17A 4 X35A Connectors 5 1–112 X10A X5A X24A X26A The table below describes the PCB connectors.
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RZQ - Final.book Page 113 Monday, September 20, 2004 11:24 AM ESIE04-01 7.11 PCB Layout FHQ71~125BUV1B PCB 1 The illustration below shows the PCB connectors. X61A X60A X33A X11A X27A X14A X15A X40A X20A X29A X18A X25A X19A X35A Connectors Part 1 – System Outline X10A X5A X24A 3 4 X26A The table below describes the PCB connectors.
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RZQ - Final.book Page 114 Monday, September 20, 2004 11:24 AM PCB Layout 11 7.12 ESIE04-01 FUQ71~125BUV1B PCB The illustration below shows the PCB connectors. X61A X60A X11A X27A X14A X15A X20A 3 X29A X18A X25A X19A 4 X35A Connectors 5 1–114 X10A X5A X24A The table below describes the PCB connectors.
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RZQ - Final.book Page 115 Monday, September 20, 2004 11:24 AM ESIE04-01 7.13 PCB Layout FAQ71BUV1B PCB 1 The illustration below shows the PCB connectors. X27A X20A 3 X30A X36A X18A X19A Connectors Connected to X15A Part 1 – System Outline 5 X35A X15A X24A The table below describes the PCB connectors.
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RZQ - Final.book Page 116 Monday, September 20, 2004 11:24 AM PCB Layout 11 7.14 ESIE04-01 FAQ100BUV1B PCB The illustration below shows the PCB connectors. X61A X60A X27A 3 X11A X19A 4 5 X98A X20A X24A X35A X25A X29A X5A X10A Connectors X14A X15A X18A The table below describes the PCB connectors.
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RZQ - Final.book Page 1 Monday, September 20, 2004 11:24 AM ESIE04-01 4 Part 2 Functional Description What is in this part? This part contains information on the functions used to control the system. Understanding these functions is vital when diagnosing a malfunction that is related to the functional control.
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RZQ - Final.book Page 3 Monday, September 20, 2004 11:24 AM ESIE04-01 General Functionality Part 2 1 1 General Functionality 2 1.1 What Is in This Chapter? Introduction This chapter will explain all functions not related to the compressor frequency control, outdoor unit fan control and expansion valve control. These functions have been programmed to ensure the unit's reliability and lifetime, enable the operation in case of malfunction, or increase the customer's comfort.
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RZQ - Final.book Page 4 Monday, September 20, 2004 11:24 AM General Functionality 1 1.2 ESIE04-01 Functions of Thermistors Locating the thermistors . Remark Sensor R3T on indoor coil of FCQ35~60B7V1, FFQ35~60BV1, FBQ35~60B7V1 & FHQ35~60BUV1 is not used when the indoor units are connected to RZQ outdoor units.
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RZQ - Final.book Page 6 Monday, September 20, 2004 11:24 AM General Functionality 1 1.3 ESIE04-01 Forced Operating Mode (Emergency Operation) Purpose The table below describes the purpose of the forced operating mode. If... 2 3 Starting conditions Then... P R/C is defective P Indoor PCB is defective P Outdoor PCB is defective Forced operating mode can be used to go to cooling or heating.
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RZQ - Final.book Page 7 Monday, September 20, 2004 11:24 AM ESIE04-01 General Functionality Step Action 3 Switch ON the emergency switch on the outdoor PCB. 1 2 4 Set the emergency switch on the outdoor PCB to the forced mode you prefer (Cooling or Heating). 3 4 5 Turn ON the power supply.
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RZQ - Final.book Page 8 Monday, September 20, 2004 11:24 AM General Functionality 1 2 1.4 ESIE04-01 Outdoor Unit Identification Function Purpose The purpose of the outdoor unit identification function is to enable the indoor unit to automatically determine which operating mode has to be set in function of the type of connected outdoor unit (c/o or h/p).
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RZQ - Final.book Page 9 Monday, September 20, 2004 11:24 AM ESIE04-01 1.5 General Functionality Simulated Operation Function 1 Outline When a malfunction on one of the below thermistors occurs, operation will continue while displaying the applicable alarm on the remote-controller. Fin thermistor malfunction is only displayed when pressing the "Inspection" button on the remote-controller.
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RZQ - Final.book Page 10 Monday, September 20, 2004 11:24 AM General Functionality 1 1.6 Outline 2 ESIE04-01 Restart Standby To prevent the compressor from frequently turning ON and OFF and allow pressure equalization, forced thermostat OFF will be conducted for 3 minutes after compressor stopping (compressor guard timer).
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RZQ - Final.book Page 11 Monday, September 20, 2004 11:24 AM ESIE04-01 1.7 General Functionality Automatic Restart Purpose 1 The purpose of the auto-restart function is to automatically resume the same operating mode as when the unit was operating when the power supply is restored after a power failure. Do not use the "Automatic Restart" function to daily start/stop the unit.
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RZQ - Final.book Page 12 Monday, September 20, 2004 11:24 AM General Functionality 1 2 1.8 Using Conditions for Remote Controller Thermostat Applicable The remote control thermostat is only available in wired remote controls. Method Unlike with VRV units, the remote control sensor is standard disabled for sky-air units. The use of the remote control sensor can be enabled by changing field setting 10(20)-2-02 to 10(20)-2-01.
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RZQ - Final.book Page 13 Monday, September 20, 2004 11:24 AM ESIE04-01 1.9 General Functionality Forced Thermostat OFF Outline The unit will perform the forced thermostat off function in following conditions: Condition 1 (cooling) Thermostat off due to freeze-up prevention. 1 Prevent the indoor unit heat exchanger from freezing in cooling operation when one of the below conditions is applicable: Condition 2 (heating) P Indoor unit heat exchanger temperature < -5°C for 1 minute continuously.
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RZQ - Final.book Page 14 Monday, September 20, 2004 11:24 AM General Functionality 1 2 1.10 ESIE04-01 Test run control Purpose When operating the RZQ units for the first time after installation, the unit will - depending on the selected operation mode - perform a test run operation first.
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RZQ - Final.book Page 15 Monday, September 20, 2004 11:24 AM ESIE04-01 1.11 General Functionality 4-way Valve Control Purpose Method Time chart 1 The purpose of the 4-way valve control is to control how the superheated refrigerant passes through the 4-way valve. The 4-way valve control carries out the changeover switching of the 4-way valve. This changeover switching is only carried out during operation, because a certain pressure difference is required to move the internal cylinder. When...
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RZQ - Final.book Page 16 Monday, September 20, 2004 11:24 AM General Functionality 1 1.12 Pump Down Residual Operation Outline 2 ESIE04-01 The unit will conduct a pump down residual operation after each compressor stop command. Purpose of this function is to collect the refrigerant in the liquid receiver and outdoor heat exchanger in order to prevent liquid refrigerant from remaining in the indoor heat exchanger.
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RZQ - Final.book Page 17 Monday, September 20, 2004 11:24 AM ESIE04-01 1.13 General Functionality Pump Down Operation Outline 1 Whenever the units need to be moved or removed, perform a pump-down operation before disconnecting the field piping. By performing a pump-down operation, all of the refrigerant will be collected in the outdoor unit. 2 Procedure Procedure 1 Start "Fan only operation" from the remote controller. Confirm that both the liquid and gas stop valves are open.
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RZQ - Final.book Page 18 Monday, September 20, 2004 11:24 AM General Functionality 1 2 1.14 ESIE04-01 Defrost Operation Outline When the unit is operating in heating mode, a defrost operation will be conducted in order to avoid ice formation on the outdoor unit heat exchanger. Defrost starting conditions Defrost will start when the following conditions have been realized: P 3 Integrated compressor running time is 25 minutes or more since the completion of the previous defrost operation.
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RZQ - Final.book Page 20 Monday, September 20, 2004 11:24 AM General Functionality 1 2 1.15 ESIE04-01 Freeze Prevention Function Purpose In order to avoid formation of ice on the indoor unit heat exchanger in cooling and dry mode, the system automatically starts up a freeze prevention cycle when a number of specific conditions are fulfilled.
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RZQ - Final.book Page 21 Monday, September 20, 2004 11:24 AM ESIE04-01 1.16 Outline General Functionality PMV Control 1 When the automatic mode is selected on the remote-controller, the unit will automatically activate the PMV control. The PMV index is a calculated average comfort level. 2 Refer to ISO 7730 for details.
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RZQ - Final.book Page 22 Monday, September 20, 2004 11:24 AM General Functionality 1 2 1.17 ESIE04-01 Preheating Operation Control Applicable units RZQ71 Outline After the compressor has been turned off, the preheating operation will be activated in order to avoid refrigerant from dissolving in the compressor oil.
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RZQ - Final.book Page 23 Monday, September 20, 2004 11:24 AM ESIE04-01 1.18 General Functionality Crankcase Heater Control 1 Applicable units RZQ100 & 125 Outline After the compressor has been turned off, the crankcase heater control will be activated in order to avoid refrigerant from dissolving in the compressor oil.
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RZQ - Final.book Page 25 Monday, September 20, 2004 11:24 AM ESIE04-01 Indoor Unit Functional Concept Part 2 2 1 Indoor Unit Functional Concept 2 2.1 What Is in This Chapter? Introduction This chapter will explain more details about the various functions that are programmed for the Sky-Air R410A inverter indoor units. Overview This chapter contains the following topics: Topic See page 2.2–Thermostat Control 2–26 2.3–Drain Pump Control 2–27 2.4–Condensation Avoidance Control 2–29 2.
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RZQ - Final.book Page 26 Monday, September 20, 2004 11:24 AM Indoor Unit Functional Concept 1 2 2.2 ESIE04-01 Thermostat Control Purpose Based on the information received from the air return sensor, the thermostat control will decide the required operation status of the system. Thermostat control Cooling mode: Set point Thermostat ON –0.5 K +1 K Thermostat OFF 3 Heating mode: Set point Thermostat ON 4 +0.
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RZQ - Final.book Page 27 Monday, September 20, 2004 11:24 AM ESIE04-01 2.3 Indoor Unit Functional Concept Drain Pump Control 1 Purpose Control the water draining from the drain pan.
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RZQ - Final.book Page 28 Monday, September 20, 2004 11:24 AM Indoor Unit Functional Concept 1 Float switch activation during thermostat ON ESIE04-01 1 The thermostat is immediately turned OFF. 2 The drain pump continues to operate for minimum 10 minutes (even if abnormality is solved within the 10 minutes). 3 If the float switch closes again within 80 seconds, cooling operation can restart within the 10 minutes recovery period.
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RZQ - Final.book Page 29 Monday, September 20, 2004 11:24 AM ESIE04-01 2.4 Indoor Unit Functional Concept Condensation Avoidance Control 1 Purpose Avoid condensation on the swing flap when the most downward position of the swing flap (position 4) is selected on the remote controller. Applicable units This function is applicable for the FHQ units only. Method The condensation avoidance control will function in the following operating modes: Method P Cooling (automatic) P Dry keep.
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RZQ - Final.book Page 30 Monday, September 20, 2004 11:24 AM Indoor Unit Functional Concept 1 2 2.5 ESIE04-01 Draft Avoidance Control 1 Purpose Avoid draft for the customer by delaying transfer of the flap to the Po0 (horizontal) position for a certain amount of time when defrosting and in heating thermostat OFF. Heating thermostat OFF The time chart below illustrates the draft avoidance control 1 in heating thermostat OFF. When the flap starts to move, there can be a draft.
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RZQ - Final.book Page 31 Monday, September 20, 2004 11:24 AM ESIE04-01 2.6 Indoor Unit Functional Concept Draft Avoidance Control 2 1 Purpose The purpose of the draft avoidance control 2 is to avoid draft when the flap is moving. Starting conditions The draft avoidance control 2 is activated when: Time chart P Hot start is finished, or P Cold air prevention control is finished. 2 If the fan speed is set to "H", the fan turns at low speed for a certain amount of time.
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RZQ - Final.book Page 32 Monday, September 20, 2004 11:24 AM Indoor Unit Functional Concept 1 2.7 Fan and Flap Operations Cooling operation 2 3 4 ESIE04-01 Function The table below contains the fan and flap operations.
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RZQ - Final.book Page 34 Monday, September 20, 2004 11:24 AM Indoor Unit Functional Concept 1 At compressor startup 2 ESIE04-01 P In cooling: The indoor fan is operated at low speed until the low-pressure value reaches 6 bar. P In heating: Hot startup controlWhen performing a startup, or after the defrosting cycle has been completed, the indoor fan will be controlled as to prevent cold air draft and secure the starting performance (quick pressure build-up).